Invitation to operadic dynamicsPaal, EugenJournal of generalized Lie theory and applications2007 / 1, p. 57-63 https://www.researchgate.net/publication/49598955_Invitation_to_operadic_dynamics

Moufang loops and generalized Lie-Cartan theoremPaal, EugenJournal of generalized Lie theory and applications2008 / 1, p. 45-49 https://www.hilarispublisher.com/open-access/moufang-loops-and-generalized-liecartan-theorem-1736-4337-2-114.pdf

Note on 2d binary operadic harmonic oscillatorPaal, Eugen; Virkepu, JüriJournal of generalized Lie theory and applications2008 / 3, p. 221-225 https://www.hilarispublisher.com/open-access/note-on-d-binary-operadic-harmonic-oscillator-1736-4337-2-140.pdf

Operadic representations of harmonic oscillator in some 3d algebrasPaal, Eugen; Virkepu, JüriJournal of generalized Lie theory and applications2009 / 1, p. 53-59